Service Manual and Parts List Manual Canon imageCLASS MF424dw/ MF426dw/ MF429dw
This manual is in the english language, in the PDF format and have detailed Diagrams, pictures and full procedures to diagnose and repair your Canon.
Content for Service Manual Canon imageCLASS MF424dw/MF426dw:
SAFETY PRECAUTIONS
Laser Safety
How to Handle the Laser Scanner Unit
Power Supply
Toner Safety
About Toner
Handling Adhered Toner
Notes When Handling a Lithium Battery
Notes Before it Works Serving
Points to Note at Cleaning
Notes on Assembly/Disassembly
1. Product Overview
Product Lineup
Host Machine
Option
Features
Specifications
Specifications of Host Machine
Reader Specifications
ADF finished stamp function
Paper type
Paper size
Parts Name
External view
Cross Section View
Control Panel
2. Technical Explanation (Device)
Basic Configuration
Functional Configuration
Original Exposure/Feed System
Original Exposure System
Original Feed System
Controller System
Functional Configuration
Main Controller PCB
Motor Control
Fan Control
Door Open Detection
Low Voltage Power Supply Control
Protection Function
Power-saving Mode
Laser Exposure System
Functional Configuration
Failure Detection
Image Formation System
Functional Configuration
Image Formation Process
High Voltage Power Supply Control
Cartridge
Fixing System
Functional Configuration
Fixing Temperature Control
Protection Function
Fixing Assembly Failure Detection
Pickup Feed System
Overview
Parts Configuration
Drive Configuration
Layout of Sensors
Cassette Detection
Cassette Pickup Control
Multi-purpose Tray Pickup Control
Skew Correction
Delivery Tray Full Detection
Jam Detection
3. Technical Explanation (System)
Overview of System Management
Version Upgrade
Function Overview
Version Upgrade Using UST
Version Upgrade via Internet
Version Upgrade Using a USB Flash Drive (Released Only in Special Cases)
Setting Information Export/Import Function (DCM)
Overview
Import/Export Procedure from [Settings/Registration] of Remote UI
Procedure for Exporting/Importing Service Mode Setting Information
Monitoring Function (imageWARE Remote)
Overview of System
Servicing Notes
Setting Procedure
Maintenance
Security Functions
Security Policy Function
4. Periodical Service
Periodically Replaced Parts
Consumable Parts
Periodical Services
5. Parts Replacement and Cleaning
List of Parts
Major Units
Layout Drawing of Electrical Components
External Cover System
Removing the Cartridge
Removing the Right Cover
Removing the Left Cover
Removing the Left Rear Cover
Removing the Cartridge Door
Removing the Rear Door
Removing the Upper Cover
Removing the Output Tray
Original Exposure/Feed System
Removing the ADF Unit + Reader Unit
Separating the ADF Unit + Reader Unit
Removing the ADF Roller Unit
Removing the ADF Pickup Roller
Removing the ADF Separation Roller
Removing the ADF Separation Pad Unit
Removing the ADF Upper Cover Unit
Removing the ADF Feed Unit
Removing the ADF CIS Unit
Removing the ADF Drive Unit
Removing the Reader Upper Cover Unit
Removing the Reader CIS
Removing the Reader CIS Timing Belt
Removing the Reader Scanner Motor
Controller System
Removing the Control Panel Unit
Removing the Wireless LAN PCB
Removing the Wireless LAN Unit
Removing the USB Unit
Removing the USB PCB
Removing the Main Fan
Removing the Main Controller PCB
Removing the Main Controller Unit
Removing the DC Controller PCB Cover
Remove the DC Controller PCB
Removing the High Voltage Power Supply PCB
Removing the Low Voltage Power Supply Unit
Removing the Relay PCB
Removing the Fax Unit(Fax model only)
Removing the FAX PCB(Fax model only)
Removing the OFF Hook PCB(Fax model only)
Removing the Speaker(Fax model only)
Laser Exposure System
Removing the Laser Scanner Unit
Image Formation System
Removing the Transfer Roller
Fixing System
Removing the Fixing Assembly
Removing the Fixing Motor
Pickup Feed Delivery System
Removing the Cassette Pickup Roller Unit
Removing the Cassette Separation Roller Unit
Removing the MP Tray Pickup Roller Unit
Removing the MP Tray Separation Pad
Removing the Registration Unit
6. Adjustment
Checking the Location Where the Service Label Is Affixed
Adjustment at Parts Replacement
After Replacing the Control Panel
Before Replacing the Main Controller PCB
After Replacing the Main Controller PCB
After Replacing the Reader Unit
After Replacing the ADF Unit
After Replacing the Reader Upper Cover Unit
After Replacing the Reader CIS Unit
After Replacing the ADF CIS Unit
7. Troubleshooting
Test Print
Engine Test Print
Controller test print
Cartridge Log Report
Troubleshooting Items
Remedy for Image Failure
Recurring faulty image
Checking the Nip Width of the Fixing Assembly
Debug Log
Function Overview
Conditions for collecting logs
Collection procedure
8. Error/Jam/Alarm
Outline
Error/Jam/Alarm Log indication
JAM/ERR LOG REPORT
Location Code
Pickup Position Code
Error Code
Error Code Details
JAM Code
Alarm Code
9. Service Mode
Overview
Entering Service Mode
Backing up Service Mode
Service Label
Remote UI Service Mode
COPIER (Service mode for printer)
DISPLAY (State display mode)
I/O (I/O display mode)
ADJUST (Adjustment mode)
FUNCTION (Operation / inspection mode)
OPTION (Specification setting mode)
COUNTER (Counter mode)
FEEDER (ADF service mode)
ADJUST (Adjustment mode)
FUNCTION (Operation / inspection mode)
FAX (FAX service mode)
SSSW (Bit switch registration mode)
MENU (Menu switch registration mode)
NUM (Numeric parameter setting mode)
NCU (NCU parameter setting mode)
TESTMODE (Service mode for test print, operation check, etc.)
PRINT (Print test mode)
FAX (FAX test mode)
APPENDICES
Service Tools
Special Tools
Solvents and Oil List
General Circuit Diagram
Backup Data List
Soft counter specifications
List of Items Which Can Be Imported
Service Mode Settings
——————————
Content for Service Manual Canon imageCLASS MF429dw:
SAFETY PRECAUTIONS
Laser Safety
How to Handle the Laser Scanner Unit
Power Supply
Toner Safety
About Toner
Handling Adhered Toner
Notes When Handling a Lithium Battery
Notes Before it Works Serving
Points to Note at Cleaning
Notes on Assembly/Disassembly
1. Product Overview
Product Lineup
Host Machine
Option
Features
Specifications
Specifications of Host Machine
Reader Specifications
ADF finished stamp function
Paper type
Paper size
Parts Name
External view
Cross Section View
Control Panel
2. Technical Explanation (Device)
Basic Configuration
Functional Configuration
Original Exposure/Feed System
Original Exposure System
Original Feed System
Controller System
Functional Configuration
Main Controller PCB
Motor Control
Fan Control
Door Open Detection
Low Voltage Power Supply Control
Protection Function
Power-saving Mode
Laser Exposure System
Functional Configuration
Failure Detection
Image Formation System
Functional Configuration
Image Formation Process
High Voltage Power Supply Control
Cartridge
Fixing System
Functional Configuration
Fixing Temperature Control
Protection Function
Fixing Assembly Failure Detection
Pickup Feed System
Overview
Parts Configuration
Drive Configuration
Layout of Sensors
Cassette Detection
Cassette Pickup Control
Multi-purpose Tray Pickup Control
Skew Correction
Delivery Tray Full Detection
Jam Detection
3. Technical Explanation (System)
Overview of System Management
Version Upgrade
Function Overview
Version Upgrade Using UST
Version Upgrade via Internet
Version Upgrade Using a USB Flash Drive (Released Only in Special Cases)
Setting Information Export/Import Function (DCM)
Overview
Import/Export Procedure from [Settings/Registration] of Remote UI
Procedure for Exporting/Importing Service Mode Setting Information
Monitoring Function (imageWARE Remote)
Overview of System
Servicing Notes
Setting Procedure
Maintenance
Security Functions
Security Policy Function
4. Periodical Service
Periodically Replaced Parts
Consumable Parts
Periodical Services
5. Parts Replacement and Cleaning
List of Parts
Major Units
Layout Drawing of Electrical Components
External Cover System
Removing the Cartridge
Removing the Right Cover
Removing the Left Cover
Removing the Left Rear Cover
Removing the Cartridge Door
Removing the Rear Door
Removing the Upper Cover
Removing the Output Tray
Original Exposure/Feed System
Removing the ADF Unit + Reader Unit
Separating the ADF Unit + Reader Unit
Removing the ADF Roller Unit
Removing the ADF Pickup Roller
Removing the ADF Separation Roller
Removing the ADF Separation Pad Unit
Removing the ADF Upper Cover Unit
Removing the ADF Feed Unit
Removing the ADF CIS Unit
Removing the ADF Drive Unit
Removing the Reader Upper Cover Unit
Removing the Reader CIS
Removing the Reader CIS Timing Belt
Removing the Reader Scanner Motor
Controller System
Removing the Control Panel Unit
Removing the Wireless LAN PCB
Removing the Wireless LAN Unit
Removing the USB Unit
Removing the USB PCB
Removing the Main Fan
Removing the Main Controller PCB
Removing the Main Controller Unit
Removing the DC Controller PCB Cover
Remove the DC Controller PCB
Removing the High Voltage Power Supply PCB
Removing the Low Voltage Power Supply Unit
Removing the Relay PCB
Removing the Fax Unit(Fax model only)
Removing the FAX PCB(Fax model only)
Removing the OFF Hook PCB(Fax model only)
Removing the Speaker(Fax model only)
Laser Exposure System
Removing the Laser Scanner Unit
Image Formation System
Removing the Transfer Roller
Fixing System
Removing the Fixing Assembly
Removing the Fixing Motor
Pickup Feed Delivery System
Removing the Cassette Pickup Roller Unit
Removing the Cassette Separation Roller Unit
Removing the MP Tray Pickup Roller Unit
Removing the MP Tray Separation Pad
Removing the Registration Unit
6. Adjustment
Checking the Location Where the Service Label Is Affixed
Adjustment at Parts Replacement
After Replacing the Control Panel
Before Replacing the Main Controller PCB
After Replacing the Main Controller PCB
After Replacing the Reader Unit
After Replacing the ADF Unit
After Replacing the Reader Upper Cover Unit
After Replacing the Reader CIS Unit
After Replacing the ADF CIS Unit
7. Troubleshooting
Test Print
Engine Test Print
Controller test print
Cartridge Log Report
Troubleshooting Items
Remedy for Image Failure
Recurring faulty image
Checking the Nip Width of the Fixing Assembly
Debug Log
Function Overview
Conditions for collecting logs
Collection procedure
8. Error/Jam/Alarm
Outline
Error/Jam/Alarm Log indication
JAM/ERR LOG REPORT
Location Code
Pickup Position Code
Error Code
Error Code Details
JAM Code
Alarm Code
9. Service Mode
Overview
Entering Service Mode
Backing up Service Mode
Service Label
Remote UI Service Mode
COPIER (Service mode for printer)
DISPLAY (State display mode)
I/O (I/O display mode)
ADJUST (Adjustment mode)
FUNCTION (Operation / inspection mode)
OPTION (Specification setting mode)
COUNTER (Counter mode)
FEEDER (ADF service mode)
ADJUST (Adjustment mode)
FUNCTION (Operation / inspection mode)
FAX (FAX service mode)
SSSW (Bit switch registration mode)
MENU (Menu switch registration mode)
NUM (Numeric parameter setting mode)
NCU (NCU parameter setting mode)
TESTMODE (Service mode for test print, operation check, etc.)
PRINT (Print test mode)
FAX (FAX test mode)
APPENDICES
Service Tools
Special Tools
Solvents and Oil List
General Circuit Diagram
Backup Data List
Soft counter specifications
List of Items Which Can Be Imported
Service Mode Settings
and Parts List Manual.
About Canon imageCLASS MF424dw/ MF426dw/ MF429dw and Documentation
This page provides technical documentation for the Canon imageCLASS MF424dw/ MF426dw/ MF429dw and used by service technicians and maintenance professionals.
The parts list manual typically includes troubleshooting procedures, adjustment instructions, service mode information, internal component layouts and maintenance guidelines required for proper repair and servicing.
These documents are commonly used in professional repair environments where accurate technical reference and correct service procedures are required.